<!DOCTYPE html>
<html>
  <head>
    <script src="test.js"></script>
<style type="text/css">
.ib {
  position: relative;
  display: inline-block;
}
.controls {
  margin: 4px;
  position: absolute;
  right: 0px;
  top: 0px;
}
</style>
  </head>
  <body bgColor='teal'>
    <br>
    <button id="add_wv">Add webview</button>
    <button id="delete_wv">Delete webview</button>
    <span><input type="checkbox" id="transparent" checked="checked"><label for="transparent">Transparent</label></span>
    <br>
  </body>
</html>
